[PATCH 2/8] opeinrisc: switch to generic version of pte allocation
From: Mike Rapoport <rppt@kernel.org>
Date: 2020-06-27 14:35:33
Also in:
linux-arch, linux-arm-kernel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
Subsystem:
openrisc architecture, the rest · Maintainers:
Jonas Bonn, Stefan Kristiansson, Stafford Horne, Linus Torvalds
From: Mike Rapoport <redacted> Replace pte_alloc_one(), pte_free() and pte_free_kernel() with the generic implementation. The only actual functional change is the addition of __GFP_ACCOUT for the allocation of the user page tables. The pte_alloc_one_kernel() is kept back because its implementation on openrisc is different than the generic one. Signed-off-by: Mike Rapoport <redacted> --- arch/openrisc/include/asm/pgalloc.h | 33 +++-------------------------- 1 file changed, 3 insertions(+), 30 deletions(-)
diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index da12a4c38c4b..88820299ecc4 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h@@ -20,6 +20,9 @@ #include <linux/mm.h> #include <linux/memblock.h> +#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL +#include <asm-generic/pgalloc.h> + extern int mem_init_done; #define pmd_populate_kernel(mm, pmd, pte) \
@@ -61,38 +64,8 @@ extern inline pgd_t *pgd_alloc(struct mm_struct *mm) } #endif -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - pte = alloc_pages(GFP_KERNEL, 0); - if (!pte) - return NULL; - clear_page(page_address(pte)); - if (!pgtable_pte_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - return pte; -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free(struct mm_struct *mm, struct page *pte) -{ - pgtable_pte_page_dtor(pte); - __free_page(pte); -} - #define __pte_free_tlb(tlb, pte, addr) \ do { \ pgtable_pte_page_dtor(pte); \
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2.26.2